Among 102 consecutive cardiac myxomas, 10 (10%) showed heavy calcifica
tion both on gross inspection and on x-ray examination. Mineralization
was partial in 6 patients (mean age 56.8 years) and massive stonelike
in 4 (mean age 70 years); relevant histologic findings in patients wi
th partial calcification were Gamma Gandy bodies in 5, cartilaginous a
nd bone metaplasia in 2, and aspecific calcium deposits in 1. All were
incidental findings either at autopsy or during clinical investigatio
n.